Countries in the Sahel are developing such as Chad, Niger, Sudan and Ethiopia. Drought puts a strain on the failing food supplies as these countries have rapidly growing populations. In the future these countries may not be able to support there populations due to a large number of dry seasons.

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Large scale water management, Three Gorges Dam

Located in China on the Yangtze river

Costed $26 billion

Positives -

Reduces seasonal flooding along the Yangtze river

Improves water supply for irrigation by regulating the river flow

Generates 80kWh of electricity a year

Makes it easier for ships to navigate

Negatives -

1.3 million people had to be relocated

River wildife has suffered and lost its habitat

Water quality is low because of upstream industry and sewage

Good farmland has been lost

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Small scale Water Managment, Dhaka (Bangladesh)

Non-governmental organisations set up low cost projects in develpoing or undevelop countries to improve water supplies. They used intermediate technology such as wells, hand pumps and rain barrels because they are cheap and easy to use.

Prodiplan is working with the community to help deliver water, sanitation and hygiene education to Dhaka

6 deep tube wells have been constructed, saving people time and energy